ADDRESS TO THE READERS
ЭПИДЕМИОЛОГИЯ И ПРОФИЛАКТИКА СЕРДЕЧНО-СОСУДИСТЫХ ЗАБОЛЕВАНИЙ
What is already known about the subject?
- Non-alcoholic fatty liver disease (NAFLD) can be classified as a non-communicable disease.
- According to a 2023 meta-analysis, the global prevalence of NAFLD has increased by 50,4% over a 20-year period. In the Russian clinical and epidemiological study DIREG, researchers also point to a rapid increase in the prevalence of NAFLD among Russians (+38,1% over 7 years). NAFLD is a multidisciplinary problem and, according to research, is associated with cardiovascular diseases, type 2 diabetes, metabolic syndrome, and excess mortality not associated with liver disease.
What might this study add?
- For the first time in Russia, the prevalence of NAFLD was obtained on a representative sample of the epidemiological study of the adult population, which amounted to 39,2% according to the fatty liver index.
- The analysis performed on a representative Russian sample of the epidemiological study confirmed the association of NAFLD with hypertension, type 2 diabetes, dyslipidemia and hyperuricemia, as well as with cerebrovascular accident in men and women, indicating its multifactorial metabolic nature of the disease.
Aim. To study the prevalence of non-alcoholic fatty liver disease (NAFLD) and its association with cardiovascular risk factors (RFs).
Material and methods. The database from the ESSE-RF2 and ESSE-RF3 epidemiological studies was used, including data from surveys of population aged 35-64 years in 18 Russian regions (n=21204). To assess the prevalence of NAFLD, the fatty liver index (FLI) was used. Statistical analysis was performed using the statistical programming language and the R environment (version 3.6.1) with open-source code. The significance level for all tested hypotheses was p≤0,05.
Results. Standardized prevalence rates of FLI ≥60 in the ESSE-RF3 study are slightly higher than in the ESSE-RF2 study (39,2% vs 42,3%, respectively). Multivariate analysis adjusted for sex, age, region, settlement type, and education showed significant associations of FLI ≥60 with hypertension, type 2 diabetes, hyperuricemia, lipid metabolism disorders, elevated high-sensitivity C-reactive protein levels, and cerebrovascular accident in men and women.
Conclusion. Multivariate analysis confirmed the closest association of NAFLD with hypertension, type 2 diabetes mellitus, metabolic disorders, nonspecific inflammation, dyslipidemia, and cerebrovascular accident in men and women.
ATRIAL FIBRILLATION
What is already known about the subject?
- The mechanisms of atrial fibrillation (AF) development in hypertension (HTN) are numerous and are due to common risk factors for these diseases, as well as structural myocardial remodeling.
- A comprehensive consideration of possible markers is necessary for forecasting.
What might this study add?
- Biochemical and echocardiographic parameters associated with paroxysmal AF have been identified in patients with HTN.
- The obtained results can be further used in risk stratification of AF in patients with HTN.
Aim. To identify associations between cardiovascular risk factors, cardiac remodeling and paroxysmal atrial fibrillation (AF) in patients with hypertension (HTN).
Material and methods. A total of 120 patients with grade I and II HTN were examined. They were divided into two groups as follows: the study group (n=60) — paroxysmal AF; comparison group (n=60) — without AF. All patients underwent anthropometric measurements, assessment of the main risk cardiovascular factors, blood lipid profile, uric acid and creatinine levels, and transthoracic echocardiography.
Results. The following markers of paroxysmal AF in hypertensive patients were determined: high-density lipoprotein cholesterol level ≤1,5 mmol/l, indexing left atrial (LA) volume by height (>18,5 ml/m2 in men and >16,5 ml/m2 in women), indexing LA volume by body surface area (>34 ml/m2 for both sexes), left ventricular end-diastolic dimension/height index ≥2,89 cm/m, peak late diastolic filling transmitral velocity ≤0,78 m/s.
Conclusion. A decrease in high-density lipoprotein cholesterol and peak late diastolic filling transmitral velocity, LA dilation, and an increase in the left ventricular end-diastolic dimension/height index are associated with paroxysmal AF in patients with hypertension and can be further included in the related risk stratification.
What is already known about the subject?
- Left atrial dilation is associated with an increased risk of atrial fibrillation (AF).
- The prevalence of AF is significantly higher in comorbid patients with hypertension (HTN) and chronic obstructive pulmonary disease (COPD) than in the general population.
What might this study add?
- In comorbid patients with HTN and COPD, dilation of not only the left but also the right atrium is associated with paroxysmal AF.
- A mathematical model has been developed to assess the probability of paroxysmal AF in patients with HTN and COPD based on transthoracic echocardiography.
Aim. To assess the relationship between right atrial (RA) dilation and paroxysmal atrial fibrillation (AF) in patients with hypertension (HTN) and chronic obstructive pulmonary disease (COPD).
Material and methods. This retrospective cross-sectional study included 369 patients with HTN and COPD, who were divided into 2 following groups: group I — 68 (18,42%) hypertensive patients with COPD and paroxysmal AF; group II (comparison group) — 301 (81,57%) patients with HTN and COPD without arrhythmia.
Results. Patients in group I had significantly higher RA area and left atrial (LA) volume index (LAVI) than patients in group II. Multivariate regression analysis revealed that the RA area and LAVI were associated with paroxysmal AF in comorbid patients with HTN and COPD. To assess the relationship between atrial size and paroxysmal AF in patients with HTN and COPD, we developed a mathematical model with the following equation: р=1/(1+e-z)*100%, z=-12,51+0,130*LAVI+0,408*RAA, where p is the probability of having paroxysmal AF (%), RAA — RA area (cm2); LAVI — left atrial volume index (ml/m2). The p-value ≥24% indicates a high probability of paroxysmal AF (area under the ROC curve (AUC) =0,89, sensitivity — 80%, specificity — 77%).
Conclusion. RA dilation is associated with paroxysmal AF in patients with HTN and COPD — odds ratio (OR) 1,50; 95% confidence interval: 1,27-1,79.
КАРДИОРЕАБИЛИТАЦИЯ
What is already known about the subject?
- The patient's body composition affects the course and prognosis of heart failure. Weight loss, obesity, and sarcopenia are factors aggravating the disease.
What might this study add?
- A rehabilitation program aimed at correcting sarcopenia and sarcopenic obesity, including a diet with a protein content of at least 1 g/kg, as well as physical and breathing exercises, in patients with heart failure is an important component of treatment improving functional activity and quality of life.
Aim. To evaluate the effectiveness of the rehabilitation program for palliative care patients with heart failure (HF) with body composition disorders.
Material and methods. The study involved 298 patients (115 men and 183 women; mean age 61 years) with diagnosed HF and indications for palliative care. The patients were divided into clinical clusters using the сhi-square automatic interaction detection. The 1st clinical cluster included patients with sarcopenic obesity (n=69 [23,2%]), the 3rd cluster — patients with cardiac cachexia (n=47 [15,8%]), the 2nd cluster occupies an intermediate position with an isolated disorder of body composition as follows: sarcopenia or obesity, or without these disorders (n=182 [61,1%]). Then, 2 groups (main and control) of 20 people each were formed from each cluster. The main groups of patients underwent a 6-month rehabilitation program with treatment corresponding to the clinical guidelines of the Ministry of Health of the Russian Federation for HF. The control groups of patients underwent only pharmacotherapy.
Results. Patients from all control groups had a significant decrease in muscle mass, while in the 1st and 2nd clusters there was an increase in body mass, and in the 3rd cluster — a decrease. The quality of life of patients from the control groups significantly decreased. Patients from the main groups of the 1st and 2nd clusters had a significant increase in muscle mass and a decrease in body weight. In patients of the 3rd cluster, body weight continued to decrease, but muscle mass indices remained stable. The quality of life of patients from the 1st cluster improved in all indices, and in the 2nd cluster — in scale 2. In patients of the 3rd cluster, the quality of life worsened.
Conclusion. The rehabilitation program including exercise and a high-protein diet improved the muscle characteristics and the quality of life of palliative patients with HF. At the same time, the greatest effectiveness of the method was demonstrated in patients with sarcopenic obesity (1st clinical cluster), and the least — in patients with cardiac cachexia (3rd clinical cluster).
ПОРОКИ СЕРДЦА
What is already known about the subject?
- Current data on the relationship between visceral adipose tissue and structural and functional heart characteristics have been studied mainly in patients with coronary artery disease and in individuals with heart failure with preserved ejection fraction.
What might this study add?
- The study demonstrated that visceral obesity is associated with more pronounced structural and functional remodeling of the heart, affecting the volume and size of the cavities, worsening the left ventricular myocardial strain and right ventricular systolic function in patients with acquired mitral valve disease. Epicardial adipose tissue value >115,1 cm3is associated with atrial fibrillation in patients before the surgical intervention for mitral valve disease.
Aim. To study the relationship between epicardial/visceral obesity and cardiac remodeling characteristics in patients with acquired mitral valve (MV) disease and indications for surgical treatment of the defect.
Material and methods. The study included 49 patients hospitalized for surgery of non-infectious acquired MV defect. Patients were divided into groups according to computed tomography as follows: group 1 — with visceral obesity (visceral adipose tissue ≥130 cm2 (n=28)), and group 2 — without visceral obesity (n=21).
Results. Patients with visceral obesity had more impaired left ventricular (LV) global longitudinal strain compared to the group without visceral obesity (-15,65 [-18,8; -11,6] vs -19,4 [-21,3; -16,9]%, p=0,020). Right ventricular ejection fraction (3D echocardiography) in group 1 was lower compared to patients in group 2 as follows: median 46 [40,6; 48,9] vs 53 [45,8; 54,2]% (p=0,042). Increase in epicardial adipose tissue (EAT) volume by 1 cm3 according to multislice computed tomography was associated with left atrial increase by a B-coefficient of 0,009 (p=0,001) and LV end-systolic volume by a B-coefficient of 0,1224 (p=0,046). The visceral adipose tissue/subcutaneous adipose tissue index >0,4 is associated with an increase in the LV mass index by a B-coefficient of 44,7 (p=0,001). According to the ROC analysis, the EAT volume >115,1 cm3 is associated with arrhythmias such as atrial fibrillation (AUC=0,714 (p=0,003)).
Conclusion. Visceral obesity is associated with a more pronounced structural and functional impairment of heart ventricles, while EAT volume >115,1 cm3 — with atrial fibrillation before MV defect surgery.
RESEARCH METHODS
What is already known about the subject?
- Intravascular ultrasound (IVUS) is one of the most accurate methods for assessing the vascular bed and the results of percutaneous coronary interventions.
What might this study add?
- The use of IVUS in elective myocardial revascularization in elderly and senile patients significantly improves 5-year outcomes by reducing the risk of cardiovascular events.
- Determining treatment tactics is the most common reason to use IVUS in older patients with non-ST-elevation myocardial infarction.
Aim. To evaluate the results of coronary intravascular ultrasound (IVUS) in elderly and senile patients in various clinical situations.
Materials and methods. The study included 155 patients aged >60 years, 118 of whom underwent elective percutaneous coronary interventions (PCI), and 37 patients were emergently hospitalized for non-ST-elevation myocardial infarction (NSTEMI). The group of elective PCI was divided into 2 following subgroups: the study group (n=58) — IVUS-guided coronary stenting, and the control group (n=60) — angiography-guided PCI. Stenting was performed based on previously performed diagnostic coronary angiography (CAG). Remote treatment results were assessed over 5 years. All patients of the NSTEMI group after diagnostic CAG underwent preoperative IVUS. We assessed the reasons for IVUS, the rate of management changes based on IVUS data, as well as immediate outcomes after endovascular treatment.
Results. The most frequent adverse event after elective PCI in patients of older age groups was repeat revascularization in the target vessel system, the risk of which was maximum by 3 years of follow-up and decreased by 5 years (odds ratio (OR) 5,09 after 1 year, OR 9,32 after 3 years and OR 5,62 after 5 years). Similar changes were revealed for the total number of cardiovascular events (OR 1,9 after 1 year, OR 3,1 after 3 years and OR 2,4 after 5 years), the risks of acute myocardial infarction (OR 2,0 after 1 year, OR 4,07 after 3 years and OR 2,1 after 5 years) and stent restenosis (OR 3,0 after 1 year, OR 7,12 after 3 years and OR 5,62 after 5 years). No differences in total mortality were found in the study and control subgroups of elective interventions (OR 0,98 after 1 year, OR 1,47 after 3 years, and OR 1,27 after 5 years, p>0,05). In older patients with NSTEMI, IVUS influenced the management strategy changes in 81% of cases, while in 5,4% of cases its use resulted in refusal of PCI, and in 70,3%, infarction-related lesions were confirmed according to IVUS data. In addition, IVUS in the treatment of patients with NSTEMI demonstrated significant differences in the angiographic and IVUS characteristics of vessel diameters (2,95±0,53 vs 3,6±0,56 mm, p=0,034) and the rate of incomplete stent apposition (11,1 vs 88,9%, p=0,002).
Conclusion. The use of IVUS in myocardial revascularization in elderly and senile patients in various clinical situations significantly reduces the rate of long-term recurrent cardiovascular events, and also affects the management strategy and immediate outcomes of stenting.
What is already known about the subject?
- Carotid ultrasound is recommended for cardiovascular risk stratification (CVR).
- Arterial stiffness (AS) is an independent factor of CVR.
- Volume sphygmography is a simple and convenient method for assessing AS, which was used in the ESSE-RF epidemiological study.
What might this study add?
- Taking into account increased AS according to the cardio-ankle vascular index (CAVI) ≥8 in CVR stratification, as well as taking into account carotid plaque score significantly increases the detection of individuals with cardiovascular events over 5-year follow-up.
- The screening method of volume sphygmography can be used in CVR stratification.
Aim. To study the potential of volume sphygmography (VS) with assessment of arterial stiffness (AS) as an alternative to carotid ultrasound in cardiovascular risk (CVR) stratification in a Tomsk adult population sample.
Material and methods. The results of a survey of a Tomsk population sample aged 40 to 64 years (n=971) were analyzed. They underwent carotid ultrasound and VS with cardio-ankle vascular index (CAVI) assessment as part of the ESSE-RF study. During a 5-year follow-up, cardiovascular events (CVEs) (cardiovascular death, non-fatal myocardial infarction (MI) or stroke) were registered in 34 people. Individuals with high and very high CVR were identified according to traditional CVR stratification based on clinical, anamnestic, and carotid ultrasound data. Alternative options for CVR stratification using the criterion of increased AS (CAVI ≥8) were considered. The effectiveness of CVR stratification was assessed by identifying CVR over a 5-year follow-up period.
Results. Based on clinical, anamnestic and carotid ultrasound (plaques in 40% (n=386)) data, 605 (62%) individuals were classified as high and very high risk, accounting for 88% (30 out of 34) of CVEs over the follow-up period (CVE rate over 5 years — 5%). CAVI ≥8 was detected in 45% (n=432) of those examined. When using the CAVI ≥8 indicator instead of the plaque criterion, a group of 633 people was formed, which also accounted for 88% (30 out of 34) of the CVEs (CVE rate over follow-up period — 4,7%), i.e. the results are comparable with the traditional approach.
Conclusion. When stratifying the CVR in the Tomsk population sample, consideration of the criterion of increased AS (CAVI ≥8) in addition to clinical and anamnestic data forms a group of people with a comparable CVE rate over a 5-year follow-up period, as when taking into account the plaque criterion according to carotid ultrasound, which account for the same number (88%) of the CVEs. This suggests the use of VS with AS assessment in the CVR stratification.
OPINION ON A PROBLEM
What is already known about the subject?
- Sympathetic nervous system hyperactivity is the most important factor in the pathogenesis of hypertension.
- Moxonidine blocks the sympathetic nervous system at the central level, reduces insulin resistance, which is of particular importance for the treatment of hypertension in patients with obesity, metabolic syndrome, prediabetes, type 2 diabetes and in women in peri- and postmenopause.
What might this study add?
- According to the results of a survey of doctors, the effectiveness of the original moxonidine and generics in real-world practice differs, which is confirmed by Russian comparative study of the original moxonidine and three generics.
Hypertension (HTN) remains one of the most pressing problems of modern healthcare. Morbidity and mortality associated with HTN continue to increase, despite a wide range of available antihypertensive agents and regular updates of related clinical guidelines. In October 2024, an annual forum was held to discuss the optimization of approaches to the treatment of HTN. During the discussion, special attention was paid to personalized therapy of patients, which should be based on modern concepts of the disease pathogenesis and individual risk factors. In addition, the validity of prescribing imidazoline receptor agonists, which are additional agents that lower blood pressure, in certain clinical situations was discussed, along with the main five classes of antihypertensive drugs. In routine practice, it is recommended to consider the use of centrally acting drugs, in particular moxonidine, to control hypertension as part of combination therapy. A central sympathetic inhibition with moxonidine therapy ensures control of blood pressure and has pleiotropic effects, among which the most important is an increase in tissue sensitivity to insulin. This is especially important for the treatment of hypertension in patients with obesity, metabolic syndrome, prediabetes, type 2 diabetes, in patients with various metabolic disorders (hyperglycemia, dyslipidemia, hyperuricemia) and in women in the peri- and postmenopausal period.
LITERATURE REVIEW
What is already known about the subject?
- Obesity may not be accompanied by metabolic disorders, which explains the existence of several obesity phenotypes.
- Metabolic healthy obesity in some cases can transform into a metabolically unhealthy phenotype.
What might this study add?
- An increase in the level of uric acid, leptin and a decrease in serum adiponectin show a clear correlation with metabolically unhealthy obesity.
- The study of changes in the composition of gut microbiota and its metabolites in metabolically unhealthy obesity is a promising direction of research.
- The studied biomarkers are associated with an imbalance of pro-inflammatory and anti-inflammatory mechanisms in the body.
Over the past 50 years, the number of obese people has increased many times. Despite the excess weight, many patients may be metabolically healthy. But studies show that this condition is an intermediate stage ending with a metabolically unhealthy phenotype, which is associated with an increase in the incidence of cardiovascular events. The concept of metabolically unhealthy obesity is characterized by altered levels of various biomarkers, the significance of which in the context of predicting a metabolically unhealthy phenotype remains to be studied. The review is devoted to the analysis of modern research data on the role of hyperuricemia, gut microbiota and its metabolites, adipocytokines, as well as an assessment of their relationship with a metabolically unhealthy obesity.
CLINICAL CASES
- Silent coronary artery disease is an incidental finding during a routine examination of a patient.
- Risk factors for coronary artery disease and cardiovascular complications should be identified in patients before non-cardiac surgery.
- With an increase in troponin levels and the absence of electrocardiographic, echocardiographic evidence for ischemia, the indications for coronary angiography should be assessed for the differential diagnosis of ischemic and non-ischemic myocardial damage.
- The case report shows an example of timely diagnosis and treatment of a patient with periprocedural silent myocardial infarction diagnosed after traumatological and orthopedic surgery.
Introduction. Diagnosis of silent coronary artery disease (CAD) in the early postoperative period is difficult. It is important to timely identify risk factors for cardiovascular complications before non-cardiac surgeries, which determines the optimal diagnostic and therapeutic strategy in the early postoperative period.
Brief description. In the presented case report, the results of examination, diagnostic and treatment tactics of a 59-year-old female patient with type 2 diabetes, hypertension and risk factors for CAD after hip arthroplasty without probable CAD are assessed. The physical examination of the patient was assessed using clinical, functional and laboratory methods, and following scales: Revised Cardiac Risk Index (RCRI); Myocardial Infarction or Cardiac Arest (Gupta MICA); Caprini risk score/Caprini Risk Assessment Model; The Wells criteria for pulmonary embolism; Heavy, Hypertensive, Atrial Fibrillation, Pulmonary Hypertension, Elder, Filling Pressure (H2FPEF). The risk of cardiovascular complications according to the RCRI and Gupta MICA scores was assessed as low. During non-cardiac surgery of moderate risk with blood loss, the patient developed acute cardiovascular failure. Troponin-positive myocardial infarction was diagnosed without electrocardiographic and echocardiographic signs of impaired local contractility, against the background of atherosclerotic coronary stenosis, confirmed by coronary angiography.
Conclusion. The case demonstrates the relevance of CAD probability assessment (pre-test, clinical) in patients with related risk factors during non-cardiac surgeries. According to Kashlan B, et al., the incidence of myocardial infarction after non-cardiac surgeries (2024) is 1%. Existing risk scores for periprocedural complications are not highly accurate and require meaningful application. The case is of interest to therapists, cardiologists, endocrinologists in relation to the preparation of a comorbid patient with CAD risk factors and the need to assess perioperative risks for an elective intervention with the achievement of recommended target indicators.
- The aim of the publication is to describe a case of premature coronary artery disease in a 40-year-old patient after multiagent chemotherapy and radiation therapy on the mediastinal lymph nodes, carried out at a young age due to lymphogranulomatosis.
- Stable class III angina developed in a patient with coronary artery disease and was assessed as a late manifestation of cardiotoxicity.
- The presented case report shows the difficulties in diagnosis of long-term manifestations of cardiotoxicity.
Introduction. Cancer occupies one of the leading positions in the list of the most common death causes in the world. The widespread use of chemo-, targeted, immune and radiation therapy in clinical practice has increased the survival of cancer patients. However, the incidence of cardiotoxic complications of antitumor therapy has increased significantly, and they may manifest themselves many years after the onset of cancer remission.
Brief description. We present a case of premature coronary artery disease (CAD) in a 40-year-old male patient, who underwent multiagent chemotherapy in combination with radiation therapy for mediastinal lymph nodes due to lymphogranulomatosis at the age of 22. In 2021, against the background of a stressful situation, the patient first noted a burning sensation in chest, which was relieved spontaneously, and an increase in blood pressure to 145/90 mm Hg. After visiting a cardiologist, a clinical, electrocardiographic and echocardiographic (at rest) examination was performed. However, no pathology was found, and therapy was not prescribed. Over the next 3 years, short-term squeezing pain in chest was periodically noted, occurring during fast walking, which was relieved when stopping. In April 2024, the patient was hospitalized in the cardiology department of the University Clinic of the N. A. Semashko Institute of Clinical Medicine of the Russian University of Medicine for an in-depth cardiological examination. Analysis of complaints and anamnestic data, clinical and paraclinical examination, made it possible to diagnose CAD, class III angina pectoris. This was regarded as a late manifestation of cardiotoxicity of chemotherapy in combination with radiation therapy to the mediastinal area, performed at the age of 22 for lymphogranulomatosis. Selective coronary angiography revealed multiple coronary stenoses. For myocardial revascularization, the patient was referred to the I. V. Davydovsky City Clinical Hospital, where 4 drug-eluting stents were inserted. Follow-up monitoring of the cardiovascular system was not carried out. When contacting a cardiologist with complaints typical for coronary insufficiency, CAD was not diagnosed.
Conclusion. The presented case shows the difficulties in diagnosing long-term manifestations of cardiotoxicity in the form of premature CAD. It is necessary to conduct additional educational activities and introduce modern technological products to improve the effectiveness of primary prevention, diagnosis and treatment of cardiotoxicity of antitumor therapy.
- The diagnosis of constrictive pericarditis requires a high degree of clinical alertness, since the clinical performance of this disease is similar to the manifestations of other diseases.
- A case of a 60-year-old patient is presented, in whom the symptoms of right ventricular failure were explained by doctors as heart failure due to coronary artery disease.
- When examining patients with heart failure with a history of cardiac surgery, constrictive pericarditis should be included in the range of diagnostic search.
Constrictive pericarditis (CP) is a rare disease with various causes. At the end of the 20th century, its etiology was often associated with tuberculosis, but recently the role of cardiac surgery has increased in developed countries. CP is difficult to diagnose due to the lack of specific manifestations. The disease is characterized by symptoms of systemic venous congestion due to impaired diastolic filling. In heart failure, pericardial calcification is often not detected on a chest X-ray, and the diagnosis is verified in clinical practice using Doppler echocardiography.
Case report. A 60-year-old man was hospitalized in November 2020 with complaints of progressive shortness of breath, swelling of lower limbs, anterior abdominal wall, lower back, and an increase in abdominal volume. In 2012, coronary artery bypass grafting was performed for multivessel coronary artery disease. Since 2018, the above complaints have appeared. Clinical manifestations were assessed as the development of heart failure due to ischemic cardiomyopathy. The prescribed complex therapy did not give an effect, and shortness of breath and edema and ascites continued to progress. It was necessary to find out the cause of the increase in systemic venous congestion. Taking into account the medical history and physical examination, pulmonary embolism, heart defects, pericarditis, as well as extracardiac pathology were included in the diagnostic search. The diagnosis of CP was established on the basis of the clinical performance, echocardiography and chest computed tomography. In April 2021, the patient underwent pericardiectomy. Subsequently, clinical and paraclinical improvement was noted with the disappearance of shortness of breath, edema, and an increase in myocardial contractility.
Conclusion. The rare occurrence of the disease, a long period without manifestations after cardiac surgery, non-specific symptoms and concomitant diseases led to a delayed diagnosis of CP. Its clinical feature is the complexity of diagnosis and the use of a single method of treatment (pericardiectomy), which improves the patient's prognosis.
ISSN 2619-0125 (Online)